/*
@STI LICENSE
(C) 2006-2008 Universit�t Innsbruck.

This file is part of myOntology.

myOntologyis free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

myOntologyis distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with myOntology.  If not, see <http://www.gnu.org/licenses/>.

@STI LICENSE */
/**
 * 
 */
package org.myontology.specialpages;

import org.apache.log4j.Logger;
import org.myontology.controller.AbstractAction;
import org.myontology.controller.AttributeHolder;
import org.myontology.controller.pages.XMLPage;

/**
 * @author <a href="michael.hackl@sti2.at">Michael Hackl</a>
 * Project: Myontology - www.myontology.org
 * STI
 *
 */
public class NavigationAction extends AbstractAction {

	public static final int FIRST=1;
	public static final int LAST=2;
	public static final int NEXT=3;
	public static final int PREVIOUS=4;
	
	private Logger logger;
	

	/* (non-Javadoc)
	 * @see org.myontology.controller.Action#execute(org.myontology.controller.AttributeHolder)
	 */

	public void execute(AttributeHolder attributes) {
		SpecialPageHolder page = SpecialPageAction.PAGE.getValue(attributes);
		String parameter = attributes.getRequestParameter("param1");
		try {
			int navigationCommand = Integer.parseInt(parameter);
			switch (navigationCommand) {
			case FIRST:
				page.firstPage();
				break;
			case LAST:
				page.lastPage();
				break;
			case NEXT:
				page.nextPage();
				break;
			case PREVIOUS:
				page.previousPage();
				break;
			}
			
		}
		catch (Exception e) {
			page.switchCurrentPage(parameter);
			page.firstPage();
		}
		XMLPage.TARGET_DIV.setValue(attributes, attributes.getRequestParameter("resultDivId"));
	}

}
